Is it true that an engine can run up to 10 hours with a fuel pump failure if electric power is available?

The assertion that an engine can run up to 10 hours with a fuel pump failure, even if electric power is available, is not accurate because an engine requires a functional fuel pump to deliver the necessary fuel to maintain operation. When a fuel pump fails, it typically leads to a loss of fuel supply to the engine, causing it to eventually stall or stop running, regardless of whether electric power is present.

In aircraft systems, the reliance on fuel pumps is critical for engine performance. Without adequate fuel flow, engines cannot sustain combustion, which means they will stop running after a brief period of time. Therefore, the engine will not be able to operate continuously for an extended duration, like 10 hours, without a functioning fuel pump.

This understanding aligns with the nature of engine mechanics, where both fuel supply and electrical components work together to ensure proper operation. Thus, the answer to the question is indeed that the statement is false.